/Engine/Source/Editor/UnrealEd/Classes/Commandlets/ConvertLevelsToExternalActorsCommandlet.h
void GetSubLevelsToConvert ( [ULevel](API\Runtime\Engine\Engine\ULevel) * MainLevel, [TSet](API\Runtime\Core\Containers\TSet)< [ULevel](API\Runtime\Engine\Engine\ULevel) * > & SubLevels, bool bRecursive )